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G83.3 ICD-10-CM Code: Monoplegia, unspecified

Compare with another code for G83.3Check this code on a claim

Billing Status: NO. This is a non-billable ICD-10-CM code: report a more specific billable code beneath it.

Coding at a Glance

Official instructions
1 inclusion term

What these terms mean →

Not billable · FY2027A non-billable heading in the tabular list: report a more specific code beneath it.

What you need to know

Source: CMS/NCHS Official ICD-10-CM tabular notes, quoted. From the CMS/NCHS tabular list for the release in force. A note the category or block publishes applies to this code too, and is marked with where it comes from.

Includesfrom G83What G83 covers
  • paralysis (complete) (incomplete), except as in G80-G82

Where it sits Source: CMS/NCHS

Under:Chapter 6: Diseases of the Nervous SystemG80-G83 Cerebral palsy and other paralytic syndromesG83 Other paralytic syndromes

Codes under G83.3 (5)

  • G83.30Monoplegia, unspecified affecting unspecified sideBillable
  • G83.31Monoplegia, unspecified affecting right dominant sideBillable
  • G83.32Monoplegia, unspecified affecting left dominant sideBillable
  • G83.33Monoplegia, unspecified affecting right nondominant sideBillable
  • G83.34Monoplegia, unspecified affecting left nondominant sideBillable

CompareCheck ClaimView Related Codes

Coding instructions

Official Tabular Instructional Notes: the inclusion, exclusion and sequencing notes published for G83.3 in the official ICD-10-CM tabular list, quoted as published.

Source: CMS/CDC — ICD-10-CM Tabular ListRelease: FY2027Effective: October 1, 2026

Trace:FY2027 changesChange historyRelease, file and checksum

Notes without a marker are published on G83.3 itself; “inherited from” names the category or block whose note applies here.

Includes

Conditions the official ICD-10-CM tabular list includes under this code.

  • paralysis (complete) (incomplete), except as in G80-G82

Source: inherited from G83

Coder workflow for G83.3

MedCoder structured workflow — derived from this code’s own official record

Before you code G83.3

  1. G83.3 is not reportable as written. Select the more specific code beneath it that the documentation supports. Codes are reported to the highest level of specificity the classification provides (Guidelines I.B.2).

    ReviewG83.30, G83.31, G83.32, G83.33, G83.34

    See the relationships section · Guide: How to choose an ICD-10-CM code →

Choose the right path

  1. Does the documentation support one of the more specific codes beneath G83.3?
    Yes → Select that code and continue the checks below on its own page.
    No → G83.3 cannot be reported as written. Where the codes beneath it include an unspecified code, that code applies when the record goes no further; otherwise query for the missing detail.

    ReviewG83.30, G83.31, G83.32, G83.33, G83.34

Report the code beneath G83.3 that the documentation supports, not G83.3 itself. Then confirm that code is valid for the date of service on its own page.

Documentation check

The provider’s diagnostic statement
Codes are assigned from the provider’s documented diagnosis, not from clinical criteria, test values or a medication list (Guidelines I.A.19).
Any detail beyond this code’s title
What the record states that a more specific code would capture — or its absence, which itself supports the unspecified code.

Coding decision scenarios

Pattern scenarios for this code’s structure — decision rules, not clinical cases

Documentation: The provider documents the condition in the terms of this code’s title and records no further detail.

Coding question: Is a more specific sibling code supportable?

Path: Review the specific siblings in this subcategory and what each requires the record to state.

Reason: A more specific code needs documentation of the distinguishing element; without it the unspecified code is appropriate, and a provider query is the route to specificity (Guidelines I.A.9.b, I.B.18).

ReviewG83.0, G83.1, G83.2, G83.4, G83.5, G83.8

Every row is derived from this code’s own record — its title, tabular notes, 7th-character family and same-category siblings — with fixed MedCoder wording; nothing is inferred about a patient. The official notes and guideline text are in the sections each row links to, and they control.

Coding context

Guidelines, coding notes, decision aids, relationships (with MS-DRG and CCSR classification), hierarchy, HCC, coverage and the context map: what a coder reaches for after the core. Each section names whether it is official source data, a MedCoder-derived relationship or MedCoder editorial.

Code Overview

Monoplegia, unspecified is a non-billable ICD-10-CM category code (G83.3). A more specific billable subcode must be selected for claims submission.

MedCoder summary Summary composed by MedCoder from this code's official ICD-10-CM record. The tabular instructional notes themselves appear verbatim below.

Official Coding Guidelines

Official source data — quoted verbatim from the CMS/NCHS Official Guidelines

Verbatim excerpts from the ICD-10-CM Official Guidelines for Coding and Reporting (CMS/NCHS) that govern this code.

Chapter 6: Diseases of the Nervous System (G00-G99)

a. Dominant/nondominant side Codes from category G81, Hemiplegia and hemiparesis, and subcategories G83.1, Monoplegia of lower limb, G83.2, Monoplegia of upper limb, and G83.3, Monoplegia, unspecified, identify whether the dominant or nondominant side is affected. Should the affected side be documented, but not specified as dominant or nondominant, and the classification system does not indicate a default, code selection is as follows: • For ambidextrous patients, the default should be dominant. • If the left side is affected, the default is non-dominant. • If the right side is affected, the default is dominant.

Verify Before Coding

From the code registry, the Medicare Code Editor, and the MS-DRG Definitions Manual. Check it against a full claim in Claim Check.

Related Codes

Same Index main term, other category

The ICD-10-CM Index to Diseases and Injuries files this code under the main term “Monoplegia”; these codes share that main term but sit in a different category of the Tabular List.

F44.4 — Conversion disorder with motor symptom or deficit (hysterical), G80.1 — Spastic diplegic cerebral palsy (congenital, spastic), G80.8 — Other cerebral palsy (congenital), I63.3 — Cerebral infarction due to thrombosis of cerebral arteries (thrombotic), I63.4 — Cerebral infarction due to embolism of cerebral arteries (embolic), I69.03 — Monoplegia of upper limb following nontraumatic subarachnoid hemorrhage (following, cerebrovascular disease, subarachnoid hemorrhage, upper limb), I69.04 — Monoplegia of lower limb following nontraumatic subarachnoid hemorrhage (following, cerebrovascular disease, subarachnoid hemorrhage, lower limb), I69.13 — Monoplegia of upper limb following nontraumatic intracerebral hemorrhage (following, cerebrovascular disease, intracerebral hemorrhage, upper limb), I69.14 — Monoplegia of lower limb following nontraumatic intracerebral hemorrhage (following, cerebrovascular disease, intracerebral hemorrhage, lower limb), I69.23 — Monoplegia of upper limb following other nontraumatic intracranial hemorrhage (following, cerebrovascular disease, nontraumatic intracranial hemorrhage NEC, upper limb), I69.24 — Monoplegia of lower limb following other nontraumatic intracranial hemorrhage (following, cerebrovascular disease, nontraumatic intracranial hemorrhage NEC, lower limb), I69.33 — Monoplegia of upper limb following cerebral infarction (following, cerebrovascular disease, stroke NOS, upper limb), I69.34 — Monoplegia of lower limb following cerebral infarction (following, cerebrovascular disease, stroke NOS, lower limb), I69.83 — Monoplegia of upper limb following other cerebrovascular disease (following, cerebrovascular disease, specified disease NEC, upper limb), I69.84 — Monoplegia of lower limb following other cerebrovascular disease (following, cerebrovascular disease, specified disease NEC, lower limb), I69.93 — Monoplegia of upper limb following unspecified cerebrovascular disease (following, cerebrovascular disease, upper limb), I69.94 — Monoplegia of lower limb following unspecified cerebrovascular disease (following, cerebrovascular disease, lower limb), R29.818 — Other symptoms and signs involving the nervous system (transient)

Contextual Map

Every relationship of G83.3 in one view: hierarchy, official tabular instructions in both directions, clinical classification, risk adjustment, MS-DRG participation, index terms and change history — each edge carrying the CMS source it derives from.

Hierarchy

Nearest codes (28)

Change history

  • FY2016 — In the code set at ICD-10-CM adoption [Change history]— CMS release files (code change ledger) · icd10cm-fy2016

Reference

Index terms and tables, published questions and FAQ, every source behind this page with its release and checksum, the date-of-service check and the complete change history.

Common coding questions

MedCoder editorial

Can G83.3 be billed directly?

No. G83.3 (Monoplegia, unspecified) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.

Sources for this page

Codes, titles, notes, index terms and mappings on this page are transcribed from the datasets below. Relationships MedCoder computed and text MedCoder wrote are labelled where they appear.

Code, title, tabular notes and index terms Official source data
CMS/CDC ICD-10-CM FY2027 tabular list, index and tables, effective October 1, 2026 Release, file and checksum · Publisher’s page
Coding guidelines Official source data
ICD-10-CM Official Guidelines for Coding and Reporting (FY2027), quoted by section Release, file and checksum · Publisher’s page
Claim edits Official source data
CMS Definitions of Medicare Code Edits — v44.0 (October 2026) Release, file and checksum · Publisher’s page
Change history and date-of-service validity Official source data
CMS ICD-10-CM release addenda, ingested release by release into the change ledger Release, file and checksum · Publisher’s page
Comparisons, relationships and the contextual map MedCoder-derived relationship
Computed by MedCoder from the tabular notes and tables above; every derived relationship is marked as derived where it appears
Summary and FAQ answers MedCoder editorial explanation
Written by MedCoder to explain the sources above: drafted with AI assistance, checked by a person against the release files, and labelled as MedCoder text where it appears. Not official text.

Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · NCCI PTP Q4 2026 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 28, 2026 · All releases and sources

Labels on this page: Official source data · MedCoder-derived relationship · MedCoder editorial explanation. How to read the labels · All data sources and release dates · CMS coding rules

Cite this page

Reference this page in a research guide, syllabus or article. The release is included because code content changes each year.

MedCoder.ai. "G83.3 — Monoplegia, unspecified." ICD-10-CM FY2027. https://medcoder.ai/icd10/code/g83.3-monoplegia-unspecified

Change history

  • FY2016 — October 1, 2015
    In the code set at ICD-10-CM adoption
    Monoplegia, unspecified

No changes since FY2016 — additions, deletions, description changes and billable-status changes are tracked through FY2027, and none are recorded for this code. Note changes are tracked from FY2027 only.

Nearest Codes in This Family

Official ICD-10-CM classifications closest to G83.3 in its code family, with their registry titles.

View all codes in the G83 family